Topics in interstellar matter : invited reviews given for commission 34 (interstellar matter) of the International Astronomical Union, at the sixteenth general assembly of IAU, Grenoble, August 1976
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Bibliographic Information
Topics in interstellar matter : invited reviews given for commission 34 (interstellar matter) of the International Astronomical Union, at the sixteenth general assembly of IAU, Grenoble, August 1976
（Astrophysics and space science library, v. 70）
D. Reidel , sold and distributed in the U.S.A., Canada, and Mexico by D. Reidel Pub. Co., c1977
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Includes bibliographical references and index
Description and Table of Contents
Description
Interstellar matter is one of the most active fields of research in present-day astronomy. Observational information spans the full electromagnetic spectrum from gamma rays through rocket-ultraviolet, optical, infrared and millimeter to long radio waves. Results of research in physical chemistry find as much application as mathematical methods. Interstellar matter plays a leading role in studies of our Galaxy and of external galaxies, and contributes increasingly to stellar astronomy. At the 16th General Assembly of the International Astronomical Union, held in August 1976 in Grenoble, France, the many new developments in this vast field were surveyed in a number of sessions of Commission 34 (Interstellar Matter), mostly jointly with other Commissions of the Union. Separate sessions were devoted to: The hot interstellar gas phase, Interaction of stars and interstellar medium, Interstellar molecules and dust, The large-scale distribution of interstellar matter in the Galaxy, and Interstellar matter in external galaxies. Twenty-four invited review papers were presented and discussed in these sessions. The quality and success of these topical reviews made it seem desirable to make them available to a wider audience. Professor Edith Muller, the new General Secretary of the IAU, enthusiastically supported the idea. Most importantly, the reviewers - who had originally been pro mised that an oral paper was the only requirement - agreed to prepare written versions. I am grateful to Mrs. Muller, to the authors, and to Reidel Publishing for their collaboration in the preparation of this book.
Table of Contents
1 - The Hot Interstellar Gas Phase.- Observations of 0 VI.- Observations of the Soft X-ray Background.- Nature, Origin and Evolution of the Hot Gas: Interstellar?.- Structure and Evolution of Wind-driven Circumstellar Shells.- Summary of Comments and Discussion.- 2 - Interaction of Stars and Interstellar Medium.- Compact HII Regions.- Dust in HII Regions.- Unusual, Large-Scale, Motions in HII Regions.- Planetary Nebulae.- Circumstellar Masers.- 3 - Interstellar Molecules and Dust.- Observations of Molecular Clouds.- Isotopie Abundances in Interstellar Clouds.- Formation and Excitation of Molecular Hydrogen.- Progress in Interstellar Molecule Formation.- The Nature of Dust Grains.- Formation and Destruction of Grains.- 4 - Large-Scale Distribution of Interstellar Matter in the Galaxy.- Comparative Morphology of Galactic Carbon Monoxide and Hydrogen.- Gamma-Ray Astrophysics and Galactic Structure.- Recombination Line Observations of Ionized Hydrogen.- The Large-Scale Distribution of Interstellar Matter in the Context of the Density-Wave Theory.- 5 - Interstellar Matter in External Galaxies.- HII Regions in Galaxies of the Local Group.- Interstellar Abundances in External Galaxies.- The Helium Problem.- Galactic Warps: Observations (with a comment by A. Toomre).- The Gas Content of Early-Type Galaxies.- Name Index.
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